Nicole Kidman Spotted for the First Time Since Filing for Divorce from Keith Urban

The "Eyes Wide Shut" star was seen stepping out for some fresh air just one day after filing for the dissolution of her marriage. News of her separation from her husband emerged earlier this week.

Nicole Kidman was spotted in public for the first time in Nashville, Tennessee, on Wednesday, October 1, since filing for divorce from Keith Urban. The "Babygirl" actress enjoyed some fresh air as she embarked on a hike alongside her sister, Antonia Kidman.

In photos obtained by the Daily Mail, Nicole opted for sporty athleisure in a fitted gray zip-up jacket layered over a top, paired with sleek black leggings. She completed her outfit with white trainers, a gray baseball cap with her hair tied back into a low ponytail, and dark sunglasses.

Beside her, Antonia kept it casual and relaxed in a dusty rose T-shirt tucked loosely into high-waisted, beige drawstring pants. She accessorized with a simple gold pendant necklace and a watch, and pulled her hair back into a low bun.

The pair's joint appearance comes amid the highly publicized split between Nicole and her husband of 19 years. News broke on Monday, September 30, that the former couple had separated and had been living apart since June.

Antonia is said to have been a significant pillar of support for Nicole during this time. "Nicole's sister [Antonia] has been a rock and the entire Kidman family has come together to support one another," a source told PEOPLE.

She listed the filing date as the date of separation and requested to be the primary residential parent of their two daughters, Sunday Rose, 17, and Faith Margaret, 14. In the filing, Nicole and Keith also agree that all major decisions regarding their kids will be made jointly.